on our AEM 6.5 SP4 instance we experience an odd problem.
We successfully integrated Target and Launch via IMS and it worked fine. Since yesterday we seem not to be able to do this anymore.
When I try to create an IMS config (at host/libs/cq/adobeims-configuration/content/configurations/createimsconfig.html) for Target or Launch I get an error immediately: "Cannot retrieve certificates: com.adobe.granite.crypto.CryptoException: Cannot convert byte data". This does NOT happen when I select "Asset Compute" or "Adobe Stock" in the *Cloud Solution* Dropdown (These were not configured previously).
In the chrome network tab I can see that the GET request to "http://host/libs/cq/adobeims-configuration/content/configurations/createimsconfig/contextCertificates?_charset_=UTF-8&cloudServiceName=Adobe+Launch" is responded with a 500 response code after I select Launch or Target. There is no stacktrace in the logs that helps me to dig further into this issue.
Can you guys maybe point me in a direction where the said certificate may be? I guess a certificate is corrupted and needs to be fixed?
Usually, the error "com.adobe.granite.crypto.CryptoException: Cannot convert byte data" happens when if the config was generated in one env (with a specific hmac/master key) and then the config deployed to another env which has a different key.
In this case, it is happening because the protected data might be encrypted with another key. You can try creating a new certificate.